Honestly, I think it looks pretty good. Having never seen Flash Gordon, I can't comment on that. But what little I have seen of Flash... goofy blonde guy in a shirt that says "Flash"... I'd say the production values here are far superior. I like Loki's armor and helmet.

The production values of the 1980 Flash Gordon really can't be criticized. Considering when that movie was made, the production values were waaaaay ahead of their time. In a lot of ways, they hold up far better than those of many other Sci Fi movies.

It's pretty campy, and not for everyone, but you should totally watch it.